Scag Power Equipment STT-31BSG manual Tracking Adjustment, Throttle Control and Choke Adjustments

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Section 6

Tracking Adjustment

CAUTION:

Stop the engine and remove the key from the ignition before making any adjustments. Wait for all moving parts to come to a complete stop before beginning work.

A.Stop the machine and place the steering control levers in the neutral position. Loosen the lock nuts securing the ball joints at each end of the RH steering control rod. Rotate the control rod to lengthen the rod and tighten the lock nuts. This will cause the control rod to stroke the RH pump less, slowing down the RH wheel. (See Figure 6-3)

-NOTE-

CAUTION:

The engine and drive unit can get hot during operation causing burn injuries. Allow engine and drive components to cool before making any adjustments.

-NOTE-

Before proceeding with this adjustment, be sure that the caster wheels turn freely and that the tire pressure in the drive wheels is correct. If the tire pressure is not correct or the caster wheel pivits are binding, the machine will pull to one side.

1.If at full speed the mower pulls right, it is an indication that the left wheel is turning faster than the right wheel. To adjust this condition, proceed as follows:

A.Stop the machine and place the steering control levers in the neutral position. Loosen the lock nuts securing the ball joints at each end of the LH steering control rod. Rotate the control rod to lengthen the rod and tighten the lock nuts. This will cause the control rod to stroke the LH pump less, slowing down the LH wheel. (See Figure 6-4)

-NOTE-

If after making the adjustment as outlined in step 1A, the machine creeps forward or backward, the neutral adjustment must be made as described on page 21.

2.If at full speed the mower pulls left, it is an indication that the right wheel is turning faster than the left wheel. To adjust this condition, proceed as follows:

If after making the adjustment as outlined in step 2A, the machine creeps forward or backward, the neutral adjustment must be made as described on page 21.

6.3THROTTLE CONTROL AND CHOKE ADJUSTMENTS

These adjustments must be performed by your Scag dealer to ensure proper and efficient running of the engine. Should either need adjustment, contact your authorized Scag service center.

6.4 BELT ADJUSTMENT

WARNING:

Before removing any guards, shut the engine off and remove the ignition key.

All drive belts and cutter deck belts are spring loaded and self-tensioning. The belts should be checked periodically for proper alignment and wear.

6.5 BELT ALIGNMENT

Belt alignment is important for proper performance of your Scag mower. If you experience frequent belt wear or breakage, see your authorized Scag service center for belt adjustment.

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Contents OPERATOR’S Manual Remember Your Mower is only AS Safe AS the Operator Table of Contents Table of Contents Contd Direction Reference General InformationIntroduction Servicing the Engine and Drive Train ComponentsISO Symbols CE Mark Fast Slow Safety Information Before Operation ConsiderationsBefore Operation Considerations Contd Operation ConsiderationsMaintenance Considerations Operation Considerations ContdSafety and Instructional Decals Drive System EngineEngine Deck Approximate Dimensions SpecificationsAdditional Specifications ProductivityOperating Instructions Controls and Instrument IdentificationSafety Interlock System Dump Valve ControlForward Travel Starting the EngineGround Travel and Steering Reverse Travel Engaging the Deck Drive Cutter BladesAfter Operation Hillside OperationParking the Mower Recommendations for Mowing Removing Clogged MaterialMoving Mower with Engine Stopped Adjusting Cutting Height Towing optional hitch accessoryTroubleshooting Cutting Conditions Condition Cause CureTroubleshooting Contd Condition Cause Cure Scalloped Cut, or Rough ContourTroubleshooting Contd GroundTravel Adjustments AdjustmentsParking Brake Adjustment Neutral Adjustment RH Steering Control Rod AdjustmentBelt Adjustment Tracking AdjustmentThrottle Control and Choke Adjustments Belt AlignmentCutter Deck Pitch Cutter Deck AdjustmentsCutter Deck Level Custom-Cut Baffle Adjustment Cutter Deck HeightCustom Cut Baffle Maintenance Maintenance Chart Recommended Service IntervalsMaintenance Chart Recommended Service Intervals Contd Lubrication Grease Fitting Lubrication Chart see FigureLubrication Fitting Points Changing Hydraulic Oil Hydraulic SystemChecking Hydraulic Oil Level Checking Engine Crankcase Oil Level Engine OILChanging Hydraulic Oil Filter Element Changing Engine Crankcase OilEngine Fuel System Engine AIR CleanerBattery Charging the Battery Battery Electrolyte First AIDCutter Blades Jump StartingDrive Belts Blade InspectionBlade Replacement TiresCooling System Cutter Deck GearboxChecking Lubricant Level Checking Coolant LevelBODY, DECK, and Upholstery Cleaning the Radiator Debris ScreenChecking The Fan Belt Tension Page 61A, 72A Cutter Decks Ref. Part Description Cutter Deck Controls Part Description Sheet Metal Components Wheel Assy Inc.items 20, 42, 43, 54 Deck Drive Components Ref. Part Description RADIATOR, Coolers & Engine Brackets Ref. Part No. No. Description Brake and Steering Components Part Description Fuel and Hydraulic System Ref. Part Description Electrical System Ref. Part No. No. Description Hydraulic Pump Assembly BDP-21L Housing Kit Includes Housing, Journal Bearing Wire HARNESS, STT 31BSG Part Number Heavy-Duty 48825 48314 481937 Limited Warranty Commercial Equipment 2002
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